Resting on the bottom of the tank doesn't always mean swim bladder disease.  Do have an air pump or a power filter in the tank? Water circulation or movement will encourage the fish to move around more . If the water is stagnant then the fish can get lazy and just sit at the bottom of the tank most of the time.

If it's swim bladder disease, then feeding peas sometimes will help but it can be a hit and miss thing. Swim bladder disease often is incurable.


-You can continue to feed with peas or another high fibre food to see if it helps

-there's a product called Paragon II by Aquatronics that is  supposed to help in the treatment of swim bladder disease although i don't have any experience with this medication.

-You can also try treating it with Melafix after every fourth day and aquarium salt everyday. Do a  water change every four day also but not on  the same day as putting in the Melafix medication.

Swim bladder disease can be caused by a deformed bladder, constipation ,  parasite infestation,  or bacterial infections. The high fibre food will attempt to correct the constipation isssue while the medication will deal with any bacterial or parasitic infections.